problem: idles but wont rev up unless I choke it manually with fingers over air intake

work done: clean all jets, complete carb overhaul twice, new plugs, adjusted richness etc...cleaned feul tank, filter petcock, all vacum lines , air filter, float seems to be working..

My thoughts -might have vacum leak, or crank case seal leak, did have some oil dripping a few weeks ago, also thought stator?

I have read many of LT80's postings and treads on this site and others...

Any ideas?
Thx

 

rings ??? iknow if reed valves are bad that is the symptoms, but i am unsure if ur quad has them

 

I am going to check reeds tonight ...

 

I have this same issue...please keep me posted to what you find....Im stumped...

 

Check the compression please.

How did you adjust the richness?

 

You need to check your compression and your reeds. I had same problem. My reeds where cracked and had low compression. Put new reeds in and honed out cylinder with new piston and rings. works great.